Hersh, Marion A <br/><br/>
Assistive technology for the hearing-impaired, deaf and deafblind 

 - New York:  Springer,  2003 
 - xix, 319 p. : ill. ; 25 cm 
<br/><br/><label>ISBN: </label>9781852333829 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication devices for people with disabilities
<br/><br/><label>Dewey Class. No.: </label>617.89 HER